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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

NJ American Water - Washington/Oxford

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

MORE ABOUT THIS CONTAMINANT

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND40ND
2015ND60ND
2016ND60ND
2017ND70ND
2018ND70ND
2019ND70ND

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2014-01-1524537501ND
2014-01-1624536701ND
2014-01-3024538801ND
2014-02-2424538401ND
2015-01-0527842401ND
2015-01-1227841001ND
2015-01-1227840201ND
2015-01-1327842001ND
2015-04-3028523501ND
2015-11-0530490101ND
2016-01-0531129301ND
2016-01-0531128901ND
2016-01-0631127101ND
2016-01-0631127901ND
2016-04-1431798301ND
2016-07-2632830001ND
2017-01-2534421401ND
2017-01-2534422501ND
2017-01-2534422201ND
2017-02-0134420601ND
2017-04-2735314101ND
2017-07-0636466501ND
2017-10-3037481801ND
2018-01-0338419701ND
2018-01-0938421501ND
2018-01-0938419801ND
2018-01-1838420601ND
2018-04-0539255701ND
2018-07-2440423401ND
2018-10-1641594901ND
2019-01-0842615901ND
2019-01-0842617701ND
2019-01-1642616701ND
2019-01-1642615801ND
2019-04-1043682401ND
2019-07-1045178101ND
2019-10-1646923501ND